package com.demo.command18;

public class Television {
	public void open(){
		System.out.println("打开电视机......");
	}
	
	public void close(){
		System.out.println("关闭电视机......");		
	}
	
	public void changeChannel(int i){
		
		System.out.println("切换电视频道......现在的频道是：" + i);
	}
}